In recent years, with the rapid development of economy in China, construction industry has rapidly developed. At the same time, with the continuous development of social economy and the continuous growth of population, the problems of water resources shortage and environment pollution are becoming more and more serious. How to solve the contradictions between the development of architectural engineering and water resource shortage is the first problem need to solve of the current construction. In the water supply and drainage design of architectural engineering, the selection of the water pump is crucial. The scientific and rational choice of water pump can promote the economy and stability of the water application of architectural engineering to attain the goal of water saving. This paper expounds the related concepts of water pump, introduces the principle of water pump selection of the water supply and drainage in architectural engineering, analyzes the water pump selection of the water supply and drainage in architectural engineering, at the same time, it also analyzes the energy saving functions of water pump selection of the water supply and drainage in architectural engineering.%近年来，随着我国经济的快速发展，建筑业发展迅速。同时随着社会经济的发展和世界人口的不断增长，水资源短缺和环境污染的问题日益严重。如何解决建筑工程发展与水资源短缺的矛盾问题，是当前建筑业首要解决的难题。在建筑工程给排水设计中，水泵的选择是至关重要的，科学合理的选择水泵来促进建筑业水应用的经济性与稳定性，实现节水目的。本文阐述了水泵的相关概念，介绍了建筑工程给排水水泵的选用原则，分析了建筑工程给排水水泵的选用，同时还分析了建筑工程给排水水泵的自身节能功能。
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